DO

Donald E. Oulman

ST Stepan: 1 patents #127 of 221Top 60%
Overall (All Time): #2,622,709 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11827544 Catalyst-free method for degrading dioxane in alkyl ether sulfate vacuum removal water Matthew V. Vollmer, Aaron Brown, Dennis Smith, Doug Gustafson, Terry Applebury 2023-11-28